Home / 738,043,272.40-1,107,232,870.20-431,177,429.20

Finding the Fourth Proportional to 738,043,272.40, 1,107,232,870.20 and 431,177,429.20

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Solution

The fourth proportional to 738,043,272.40, 1,107,232,870.20 and 431,177,429.20 is: 646,864,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,043,272.40 : 1,107,232,870.20 = 431,177,429.20 : x
  2. Step 2: Convert to fraction form
    738,043,272.40/1,107,232,870.20 = 431,177,429.20/x
  3. Step 3: Cross multiply
    738,043,272.40x = 1,107,232,870.20 × 431,177,429.20
  4. Step 4: Simplify right side
    738,043,272.40x = 477,413,822,498,573,312
  5. Step 5: Solve for x
    x = 477,413,822,498,573,312/738,043,272.40
  6. Step 6: Final answer
    x = 646,864,269.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.